Cerebellopontine angle primary diffuse large B cell (non-Hodgkins) lymphoma mimicking an acoustic schwannoma

We report a rare case with a man who presented himself with hypacusis, vertigo and insecure gait. MRI revealed a tumor in the left cerebellopontine angle extending into the internal auditory canal. The tumor, preoperatively diagnosed as an acoustic schwannoma, was a large anaplastic B cell non-Hodgkins lymphoma. Although rare, the non-Hodgkins lymphoma should be included in the differential diagnoses of tumors in the cerebellopontine angle.